Mason&#39;s guide and line holding apparatus



1 July 19, 1960 M. BROWN ETAL A 2,945,302

MAsoN's GUIDE AND LINE HOLDING APPARATUS Filed Dec. 6I 1957 5Sheets-Sheet 1 FIG. i.

July 19, 1960 l. M. BRowN ETAL MAsoN's GUIDE AND LINE HOLDING APPARATUS5 Sheets-Sheet 2 Filed Dec. 6, 1957 INVENTORS /Q M eou/fv,

.4L rofv e. Beca/N, BY

AT TOZA/EVS.

July 19, 1960 l. M. BROWN ET AL 2,945,302

MAsoN's GUIDE AND LINE HOLDING APPARATUS Filed Dec. 6^, 1957 5sheets-sheet s TTOQIVEYS.

July 19, 1960 l. M. BROWN ETAL A 2,945,302

MAsoNs GUIDE AND LINE HOLDING APPARATUS v Filed Dec. 6, 1957 N v 5Sheets-Sheet 4 M. BROWN ETAL 2,945,302 y MAsoN's'GuIDE AND LINE HOLDINGAPPARATUS July 19, 1960 Filed Dec. 6, 1957 5 sheets-sheet 5 INVENTORSnew A4. B20/WV, /92 4 ra/v e. seau/4 MASONS GUIDE AND LINE HOLDINGAPPARATUS Ira Brown, P.O. Box 247, and Alton R. Brown, P.O. Box 222,both of St. Simons Island, Ga.

Filed Dec. '6, 1957, Ser. No. 701,027

4 Claims. .(Cl. 334-85) The present invention relates to a masons guideand line holding apparatus.

An object of the present invention is to provide a masons guide and lineholding apparatus which enables ,a mason to erect building walls ofbuilding blocks in vertical and horizontal accurate dimensions.

Another object of the present invention is to provide a masons guide andline holding apparatus which is easily and quickly adjusted, one sturdyin construction and of simple structure, and one which is economicallyfeasible.

These and other objects and advantages of the present invention will befully apparent :from the following description when taken in connectionwith the annexed drawings, in which:

Figure 1 is an isometric view of a building wall at the corner thereofwith the apparatus of the present invention installed thereon;

Figure 2 is an elevational view of a portion of the apparatus shown -inFigure 1;

Figure 3 is an exploded view of a portion of theassembly shown in Figure2;

Figure 4 is a plan view of the assembly shown in Figure 2 with a portionof one anchoring means broken away;

Figne 5 is a sectional view taken on the line 5--5 of Figure 2;

. Figure 6 is a sectional View, on an enlarged scale, taken on the line6 6 of Figure 4;

Figure 7 is an elevational view of another portion of the inventionshown in Figure 1;

Figure 8 is a sectional View, on an enlarged scale, taken on the line8-8 of Figure 3;

Figure 9 is a fragmentary elevational View of a portion of the assemblyshown in Figure 4;

Figure l0 is a Asectional View, on an enlarged scale, taken on the linelll- 10 of Figure 9;

Figure 11 is a sectional view taken on the line 11-11 of Figure 110;

Figure 12 is a plan view of the assembly shown in Figure 7;

Figure 13 is a plan view of another portion of the assembly shown inFigure 1;

Figure 14 is a fragmentary elevational view of the assembly shown inFigure 13; and

Figure 15 is a sectional view, on an enlarged scale, taken on the line15-15 of Figure 13.

Referring in greater detail to the drawings in which like numeralsindicate like parts throughout the several viewsthe reference numeralsand 22represent two sections of a building vwall at the corner thereofand a lirs't component of the present invention is shown in Figure landdesignated by the reference numeral 24.

The apparatus component 24 is shown in-detail in Figures 2 to 4 andcomprises a vertical base 26 having a pair of` horizontally disposedelongated plates28 and 30 vrarranged at a right angle with respect toeach other,

the Aplate projecting from one side of` the base 26 adaient vazi2,945,302 Patented July 19, 1960 ice jacent the upper end of the latter.Bolts 32 secure the plates 28 and 30 to the upper end of the vbase 26. Ashort plate 34 is .bolted to the top of the plates 128 and 30 andextends across the gap between their adjacent ends, the plate 34 beingremote from the base 26 andi forming a coplanar portion of the plates 28and 30 and adapted to extend over and rest upon the corner ol the Walls2li-2,2.y

The portions of the plates 28 and 30 remote from the plate 34 areadapted to extend exteriorly along, as anchoring means for theapparatus, and engage each of the walls 20 and 22 when the plate 34 ismounted upon the corner of such walls.

A ledge 36 projects from the other side of the vertical base '26adjacent the lower end of the latter.

A table `38 is superimposed upon and spaced from the ledge 36 and isconnected to the ledge 36 for tilting movement about a vertical axis.Means is operatively connected to the table 38 and to the ledge 36 forholding the table 38 in a selected position of its tilting movement.This means includes a centrally disposed retaining bolt 40, -Figure 2,having a head 37 on one end and a threaded portion 39 extending inwardlyfrom the other end and terminating at a point spaced from the head 37.The bolt head 37 of the' bolt 40 is loosely received in a countersunkhole 41 provided in the table 38 with a threaded portion 39 of the bolt40 in threaded engagement with a threaded bore 43 provided in the ledge36. Aplurality of leveling screws 42 are interposed between the ledge 36and the table 38 and are spaced about the bolt 40, the upper ends of thescrews 42 bearing against the under side of Vthe table 38 and the lowerends of the screws 42 are each threadedly received in a threaded bore,not shown, formed in the ledge 36. The tilting movement of the table 38is accomplished by manually rotating opposed ones of the leveling screws42 into and out of the ledge `36 in the conventional manner.

A post 44 is lixedly carried tby the table 38 and a hollow standard 46is arrangedin vertical spaced rela tion with respect to the post 44. Atransverselyldisposed support element 48 extends slidably-through theupper `end of the post 44 and is adjustably secured therein by of rotarymovement of the standard 46 within the support element 48.`

An upstanding guide rod 54 is positioned adjacent the standard 46 andVis supported in xed spaced relation with respect tothe standard 46 andconnected for movement with the standard 46 by means of a lower supportmember 56 and an upper support mem'ber 58. Secured to each of thesupport members 56 and 58 is a line holder 60 and A62, respectively,each being secured by screws 64 to the support members 56 'and 58 forselective positioning toward and away from the guide rod 54. A plumbline 66 extends between the holders 60 and 62 and is carried thereby. Aspring clip 68 maintains tension in the plumb line 66, as shownl mostclearly in Figure 2.

The standard 46 ishollow and closed at its upper end by a cap 70 havinga stud 72 depending there-from to which is secured a ball and socketjoint member 74. A rigid rod 76 has its upper end threaded and swingingmovement within the standard 46. The lower end of the rod 76 carries apointer element 78 which is visiblethrough a transparent plastic cup 80carried on threadedly Vconnected in the ball and socket ,member 74 forfree agessoa 46 is ina truly vertical position. The underside of thedisc 82 is provided with a threaded bore 81 receiving the threaded endportion 8S ofa thumb bolt 86, Figures 2 and 7, thereby removablysecuring, the disc 82 inthe cup 8 0. In =Figuref3the disc 82andthumbboltg86 are shown detached "from the cup `30.

The guide rod H5 4 is provided with `aplurality of notches 88arranged1instepped relation about the rod 54, .the notches SS receivinga pawl 90pivotally mounted upon a gauge block or gauge,9 2 Slidablyconnected to the standar=d^46 and the guide rod 54. The notches 8S arearranged in increments of a sixteenthof an inch more or less, asdesired, and represent building block course lines or marks for variousthicknesses of mortar used with 'buildirleblok l 0f various ,types Theguide rod'54 is rotatable so as to bring one or another yseries of,notches 8 8 into registry with .t-hepawl 90. VThe portion of the guiderod 54adjacent vthe upper end is thread.- ed 4and also provided with alongitudinally arranged groove (notshown) receiving a projection on theinner periphery oa-washer 9.4 for securing suchwasher 94 against rotarymovement relative toA the guide rod 54.

A peg 9.6 projects upwardly jfrom the washer 94 and is received Ain ahole provided on the underside of an vindicating collarQS. The collar 98is ,provided with indicia and 'also withdetent recesses 100 formed initsperiphery adjacent the lower end thereof. The peg 96 .andthecooperating groove in 'the guide bar V54 and ,the projection on thewasher 94 serve as a means .to detachably `secure the .collar`98 to theguide rod 54. A' knurled nut 102 vis threadedly engaged with externalthreads on the upper end of vtl 1e. colla1`^'98 andis circ-umposed abouta shoulder'104provided on a locking nut 106. 'The guide rod54may'berotated by turning the collar 9 8 to bring any selected series ofnotches 88 into thepathoimovement ofthe pawl.90. Nut102 maybe loosenedand nut 106 rotated toeither the right or left to raise o r lowerthegguide rod 54, including thegauge 92 withthepawl 90 resting 'in aselected notch' 88.

The notches 88 and the pawl 9 0 provide releasable latch means o n theygauge L92 and; standard forholding `the gauge 9 2' intheselectedposition `of its up and down movement relative to the standard.

A springgclip'108- secured tothe upper Support member K58 behind'theline -holder62 (Figure 2) has a leg 110 projecting therefromresilientlyreceivable within one of the recesses 100 vwhen the collar 98jhas Ybeen turned to put in'registry one seriesof 4 notches 88 withthe' pawl 90. VThe clip 10S is. shown most .clearlyinjFig-ure 3.

In [Figure 4,V the reference lumeral l112represents the line holdermounted on each side of thegauge92 for upward and downward movementtherewith.

Means is provided on each of the plat es 28 andrt), constitutinganchoring rneans, for securing them to the partiallyiinishedbuildingwall, as shown in Figure 1. This means cQnsiStsinanarm.114 pivotally connected adjacent one end to the vdepending web 116 ofeach plate 28 and 30. T he anchoring means onbothof the plates 28 and230 zare identicaland Vwill, bedescribed withreference to the.anhoringmeans on the p late28. This structure is shownmostclearly inFigures, 9, l0, and 1.1.' A `bolt-1,18 havinga-handle v120 on itsupperend is rotatably mountedadjacentits upper end in theplate A28. Theportionot the, bolt 118belo.w the plate. v2 8 ,extends through the legsyinland l 123. of a..U.-Shaped bracketlzz. A pawl 124isthreadedlyengaged on the bolt.118vbe tween .the legs f121 and 123 .andmoves upwardly and downwardly .responsive `to. the rotation of the bolt118. ,A slide Amember is ..slidably mounted on the bight Y 1127 of thebracket 122 and hasga notched ilange: 128..projecting .frosinone .edge.'o. tlie niember.f12j6, a.11otch..of the. ange .128.being engagedbyfatoothlZS ongthepawl124,. as shown in Figures 1O1and.1.1. r v Y .An`angleshaped,ac .xtension 1:11 tothe slidemsmbr I aaudrhesthetventsalleg 133 below the leg 131, the leg 133, as shown in dotted linesinFigure 1l, being provided with an opening. 'The vertical leg 133 of theextension 130 is secured to the arm 114 by means of a pin 132 extendingthrough said opening, the pin 132 being shown in full lines in Figure 10and in dotted lines in Figure 1l. The arm 114 is pivotally mounted onthe web 116 of the plate 28 by means ,ota :bolt134 and washer 136;, thebolt 134 being threadedly received inthe threaded bore 135 provided inthe web 116. Upon manual rotation of the bolt 11S the pawl `124 iscorrespondingly moved, resulting in pivotal movementof thearmv 114 aboutthe bolt 134 as an axis.

The free Yend ofthe `arm 114 carries va hook 138 (Figure 6) `forinsertion under a brick of a course of bricks or other building block,as shown in Figure 1, when the invention component 24 is installed uponthe corner of a building wall. Slidably mounted under a plate v member14) on the free end portion of the plate 28 is a support element 142 ofa length to extend over or at leastpartially over thecourse ofbrick orother building block and to beernbedded in the-motar as the buildingwall is erected in succeeding courses.

In Figure 1, t wo other upri-ghtcomponents of the present vim/ention areshown for supporting the masons line 144,at pointsalong thewallsl and 22remote from the c orner`o f such walls. Qne of such components,designatedgenerally bythereference numeral 145 is shown in detail inFigures 7 and l2. The same hollow standard 46and the solid-guide rod 5 4are used with other means for supportingthelatter in an uprightcondition Von vthe wall20. This means includes aclarnp bar 146 (Figure7) which extends through a base member 148 andis clamped on Athefw-all20 by means of ya pawl 150 engageable in teeth provdedouthe clamp bar146. The pawl 150 is of U-shaped configuration, as shown in Figure 12,and is mountedfupon the sides of an upright block 152 the upper end faceof which is shown in Figure 1 2 in full lines. The `block 152 is shownin dotted-lines in Figure 7 with the threaded shank portion of a bolt154 valso V shownin dotted lines traversing the lower end portionoftheblock 152 and havingone end bearing against an abutment 156 providedon the depending portion of :therbasernember 148. 5The knurled head ofthe boltf154 on has .therreema11-eg f is shownY in lFigure l2 anddesignated by the reference numeral 158.

An upstanding positioning plate 161i isarranged in f ace torace relationwith the 4'upright face of the base member 148. An upright support 162is in face to face abutting relation with the .opposite face of theplate and is secured to the fbas e member 14S by means of a boltandwingnut assembly Y164. A .stub vshaft 166 has a portion adjacent one-end thereof projecting through thearrnsof-fthesupport162, sucharrnsbeing separated and providing a space fora ring clamp element 168circumposedzabout the shaft166 andsecured thereon by means of a capscrew 170, as shown in Figure 7. AOne leg ofthe .ringclampelemenL-lextends vertically and is movable toward and away from the support 162by means of aknurlednut 17.2.threadedly engaged on a bolt 174 with aspring 176 biasing the attached .shaft 166 for rotary movement .in.the,.clockwise direction, as viewed in Figure 7.

v .rrsupp-ort 1 .'78 is positionedaabove the lower end of the standard46 and receives therein the lower end portion ofsthe ,standard4 6. ThesupportlZS is secured on the .Annuseries-.emigration Qftthe haft 16,4

f Means-,is proyided for t' gsthe plate -160 when the bolt: :and .fwingnut assembly 164 is loosened yfreeing the support- 162 from the plate1,60. means yconsists in .a lugrl fproiectnefwm the. :fase Qf the Plate160 below I thej; support 1 6 2 and engageablein anotch provided in ahorizontally .disposed carriage.18 2 positioned adjacent the lowerzendofthesbase rnember-1 48, the lug 180 reeeiued .inra notehfotthe carriage`1S2 .constituting .means l therewith. A horizontally disposed bolt,only the head 184 which is shown in Figure 7 is supported for rotationin the lower end portion of the base member 148 and is threadedlyengaged by the carriage 182. Manual rotation of the bolt head 184effects back-and-forth movement of the car-rage 182 relative to the basemember 148, resulting in tilting'movement of the plate 160. The tiltingmovement of the plate 160 is used to adjust the vertical position of thestandard 46 in one direction and the tightening or loosening of the nut172 on the bolt 174 is used to correct the vertical position of thestandard 46 in the other direction. The upper support member 58 connectsthe standard 46 to the guide rod 54 as heretofore described withreference to the invention component 24. The same structure of thenotches 88 and the means for positioning the notches 88 relative to thepawl 90 on the line holder 186 is used with the aforesaid line holder112.

Means is provided for holding a masons line onth other Wall 22, suchmeans taking the form of another' component 188 which includes all ofthe elements above described with reference to the component 145 mountedupon the wall 20.

As shown in Figure 1, the component 188 is mounted upon the end of asection adjacent a window or door opening and is'so mounted that thebase member is on the vertical portion of the jamb or door opening withonly the free end of the clamp bar 146 showing and engaging one side ofthe wall 22. Referring again to Figure 7, the line holder 186 is seen tohave an upturned clamping member 190 utilized for the support of ahorizontally dis-V posed open frame 192 shown in Figures 13 to 15. Theframe 192 includes an outer C-shaped arm 194 and an inner arm 196telescopically arranged together and ad-V justably secured together bymeans of a bolt 198 threaded into one side of a clamping member 200, asshown in Figure l5, pressing the arm 196 against the arm 194. The freeends of the arms 194 and 196 are connected together by a cord link 202and a U-shaped metal strip 204Vwhich permits the masons line 206 to bepositioned at the same level as the co'rd link 202 without interferencetherewith.

Means is provided on each of the line holders 186 for supporting a reelof the masons line to be used. This means consists in a reel 208 mountedupon a stub shaft 210 having a spring 212 circur'nposed thereabout. Thespring 212 has one end anchored in the reel 208 and the other endanchored in a'knurled nut 214 mounted on a 'reduced portion (not shown)of the shaft 210. A C- washer (shown in dotted lines in Figure 13) isreceived on the bolt 210 adjacent the undercut one face of the nut 214and holds the nut 214 against the partially compressed spring 212.Another nut 216 having a counter bore (not shown) large enough toreceive the washer 215 is thread? ed on the bolt 210 and may betightened against the nut 214 to bind the' same against the largerportion of the bolt 210. When the nut 216 is loosened, tension on thereel 208 is released and the masons line 206 maybe unreeled therefrom.Means is provided for accuratelyV positioning the masons line 144 or 206relative to the wall to -be constructed. Specically, this means consistsin a bolt 218 rotatably supported in a bracket 220 dependingly carriedon the line holder 186. An inverted hook 222 is carried upon a block 224threadedly mounted upon the bolt 218 for movement toward and away fromthe guide rod 54.

Referring again to Figure 4, it will be seen that the plate 30 isprovided on its free end with the plate member 140 and the slidablesupport element 142 for supporting the plate 30 in the horizontalposition upon the partly finished wall 22. The plate 30 is also providedwith the same anchoring means including an arm 114 and the buildingblock engaging means carried by the arm 114.

In use, the components of the invention are erected on the partiallycompleted wall or upon the foundation for such wall with the guide rod54 and the standard 46 in 6 the. vertical position. This is accomplishedby adjustment of the associated support, in the case of the inventioncomponent 24, this being the adjustment of the table 38 relative to theledge 36. The adjustment of the standard 46 and the guide rod 54 of theother components is aocomplished by adjustment of the side levelingcarriage 182 and the rocking of the shaft 166 about the horizontal axis.The thumb bolt 86 is loosely seated within the bottom of the cup so thatthe disc 82 may be raised into engagement with the pointer element 78 tostop the swinging of the latter in order that the pointer element 78 andthe attached rod 76 come to rest as quickly as possible while thevertical adjustment of the standard 46 is made.

With the standard 46 and the associated guide rod 54 in the verticalposition, in each of the components, the guide rod 54 is turned topresent to the pawl 90 the desired series of notches 88 for theparticular type of building block being used and the desired thicknessof motar to be used between such block. The masons line is thenstretched between the line holders and the hooks associated with thegauges or line holders 186. The blocks 224 are adjusted inwardly oroutwardly and the gauge 92 shifted until the lines 144 and 206'are inthe proper position relative to the walls to be constructed. After acourse is laid, each gauge and the holder is raised to engage the pawlin the next notch 88.

When the line holder has been raised as far as it is possible on eachstandard 46, the line supports are removed from the'wall and mortar isplaced in the space left by the removal of the plate 34 and the removalof the projecting end portions of the support elements 142. The linesupports are then placed again on the wall and the operation isrepeated.

While only a preferred embodiment of the present invention has beenshown and described, other embodiments are contemplated and numerouschanges and modifications may be made therein Without departing fromthespirit of the invention as set forth in the appended claims.

What is claimed is: l

1. In a masons guide and line holding apparatus, a vertical base adaptedto be positioned exteriorly of and adjacent to a corner of a partiallyerected building Wall,

a horizontally disposed plate projecting from one side of said baseadjacent the upper end thereof and adapted to have a portion'remote fromsaid base to extend over and rest upon the corner of said wall, ananchoring means embodying a pair of horizontally disposed elongatedplates arranged at a right angle with respect to each other positionedbelow and attached to said horizontally dis- .posed plate and eachadapted to extendexteriorly along and engage each `of the meeting wallsof saidcornertable in a selected position of its tilting movement, apost` fxedly carried by said table, a transversely disposed sup portelement extending slidably through the upper end of said post andadjustably secured to said'post, a standard arranged in vertical spacedrelation with respect to-said post and supported Within said supportelement for rotary movement, a securing member carried by said supportelement and engageable with said standard for holding said standard inany position of its rotary movement within said support element, abuilding block gauge mounted on said standard for up an down movement, aguide rod secured to said standard, and releasable latch means on saidgauge and guide rod for holding said gauge in a selected position of itsup and down movement.

2. In a masons guide and line holding apparatus, a vertical base adaptedto be positioned exteriorly of and adjacent to a corner of a partiallyerected building wall,

said-base adjacenttbe upperfendthereoffadapted 1toliave uponthe corneroffsaidwalL-an'anelioring-meansembodying fa pairoffhorizontally disposedelongatedfplates arranged-atea riglit f'angle 'with respectto 'eachother positionedbelow and attached 'to said `horizontally Y disposedplate =and each Aadapted to lexten'd exteriorly along -fan'd engage'eaehofth'emeet-ing walls' of saidfcorner'when said base has beenmounted adjacentlsaideorner, a Sledge; projectingfrom the other side ofsaidvbase adjacentthe lower endftliereofgf'a tab'lef superimposed uponand' spaced from said iAledge 'land' connected fto fsaid'l'edge fiortilting-movement about a vertical axis, means operatively connectedtosaidtablefandledgeltor holding 'said-tablein2aselectedpositionlof-iits tilting movement, a post iiixedly 'carried byfs'aidtable,fa transversely disposed support' element extending :islidablythroughithetupper end of'said postiand adjustably -secured to said post,a standard arrangel ,in vertical-f spaced/J relation with res'peettoi'said postfand spported fwithinl'said supportelement-for rotar'ymovement,

engageable vwith said standard for holding said :standard in 'anyposition -of its rotary movement withins'aid-sipport'felement, abuildin-g lblock gauge'mounted on `s'tiid standard-for upa'nd downmovement,a guide-rodlse'cured to said standard, eleasable latchmeans-onsaid gaugeaiid guideirodlforfholding said 'gaugefinv a2-seleetedposition'of its up Vfand" down movement, a vertical 4support'adapted to bexe'dly-ianchored exteriorly of one of themetingv'v'fallsoff'said Icorner and spaced fromsaid'coner, abuildi'n'gblockieourseagange mounted on saidsuppoitfrup and down 1movement, meansfor holding said last intentioned gauge in a selected position of itsmovement, and a mnsons 2li-ne stretched 'between saidgges Vva'ri`cl"-`eairried thereby. Y

f3. 11n amasons `guide 'and lineho'lding apparatus, a veitiealfbaseadaptedto be 'positioned exteriorly vf @and adja'ee'ntYA toA 'acorn'erof a partially eecte'd building Wall, a horizontally disposed plateprojeetingffffononelside of said-basefatljaeerit`= the upper tend'thereof vadapted t'o have a'por'tionifemotefromlsaidbase to extendoverfan'd rest upon the c'ornerof'said'wall, a'n anchoring meanslembodyingf-a -pair of Nlic'irizoiitally disposed elngate'd platesarranged `at -a `:rightangle it/ithrespe'ct'to` each-other' positioned'below Aand attahed "to said horizontally kdisposed ptate':and`f-eaehadapted to extend '"ext'erior'ly along and base-'has beenmountedadjacent saidfc'or'ner, alledg'eprojetingifromthefotherisideofs'aid base'adjacent the lower end fthereo'f, fa tablesnperimpose'dupon and spaced from said ledge andcon'nected tosaid ledgefor vtilting 'movementabout-a vet-tidal aXis,-fr`neans-ope`rativ1yConne'te'd toisaidtableandledgefr-holdingsaid table in asle'etedposition of l:its tilting movement, a -po'st lixe'dly rcarried standardforup and downfmovement,azguide rodI secured to'fsaid-standarm-releasable latch meansy onf said gauge and #guide od for holdinglsaid gauge in-a vselectedlposition oflits v'up fand down movement, a Vertical supportadapted to b'etixedlyYa'nehored-exteriorly ot one of the meetingwallso'f said corner and'spaced from 'said corner, Vassecondbuil'dingblock coursegauge mounted on saidsup'port for' upland' down movement,means for holding'saidsecond gauge Yin a selected position of its`movement, la masns line'stretche'd between said lirst'and'secondAgauges andcarriedthereby, another vertical support'adaptedto b"efxedlyanchored 'exteriorlyof the' other- `of the meeting walls of'sai'dcrner andspaced fromsaid eorner, a'third building 'block course gaugevmounted -on lsaid -another support'forup `fand down movement, meansorholding said thir`d gauge in als'ele'cted position of its movement,and'faY masons iline stretched between :said "tirst and third gauges Yand carried thereby.

4. :In a Vmaso'ns guide and Yline Vholding apparatus, t-a verticalbase'adapted to be positioned exterior-ly vof'and adjacent'fto acornerof a partiallylerected building YWall, a horizontally disposedplate projecting from onefsid'eof said base adjacent the upper endthereofadapted to have afportion=remote from said base' to extend overand rest upon the'eornerof said wall, an anchorin'gmeans'embodyingapair'of horizontally dispsed elongated plates arrangedat aright'angl'ewith respect to each-other positioned-below and attached to saidhorizontally disposed plate and each adapted `to extend exteriorly alongand en'gagefeach-otthe meeting walls otsaid corner when said base hasbeenmounted-adjacent said corner, `a-ledge"pro jectingfroni'theotlierside ofsaid'base-'adjacent'the lower end thereof, Vatablesuperimposedupon 'an'dspaced from sfa-iddedgeandconnected to `'-saidledge fortiltingrm'ovement about a vertical axis, meansoperativelyconnected to `said tble'andledge'for holding'said tableinaselect'ed position of its tilting movemeng a Vpost xedly carried by:said table, a vtransversely -disposed support element extendingslidably through the'u'pperE end of:saidpos'tfan'd adjustably secured toTsaid post, a standard arranged in verticalspaced relation withespecttosaid post and supported withn'fsidfsupp'ort element `for `rotary"movement, asecuring member carried by'said -support element fandengageable with fsai'd 'standard `for holding said standard in anyposition of its rotary movementWithinfsaid'support `element, anupstanding guide rod .positioned adjacent-'saidstandard and vconnectedto saidstandard -for movement With the latter, a building blockcoursegauge mountedo'n Ysaid standard Aand'said'rod for up and down movement,a :line holder mounted on said guide rod adjacent each end thereof, anda vplumb vline extending between said line holders and carried thereby.

Reterenees Cited in the'le of this patent UNirEh 'STATES VPATENTS

